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公开(公告)号：US20140150492A1
公开(公告)日：2014-06-05
申请号：US14068248
申请日：2013-10-31
CPC分类号： F25J1/0022 , C09K5/042 , C09K5/045 , C09K2205/12 , C09K2205/22 , F25J1/0097 , F25J1/0256 , F25J1/0278
摘要： Methods and systems for liquefying natural gas using nonflammable refrigerants are provided. Methods of liquefaction include cooling a natural gas stream via indirect heat exchange with a first nonflammable refrigerant selected from the group consisting of: difluoromethane, pentafluoromethane, trifluoromethane, hexafluoroethane, tetrafluoroethane, pentafluorethane, trifluoroethane, pentafluoroethane, any derivative thereof, and any combination thereof during a first refrigeration cycle; and cooling the natural gas stream via indirect heat exchange with a second refrigerant during a second refrigeration cycle.
摘要翻译： 提供了使用不燃性制冷剂液化天然气的方法和系统。 液化方法包括通过与选自二氟甲烷，五氟甲烷，三氟甲烷，六氟乙烷，四氟乙烷，五氟乙烷，三氟乙烷，五氟乙烷及其任何衍生物的第一不可燃制冷剂的间接热交换及其任何组合来冷却天然气流，以及其任何组合 第一个制冷循环; 以及在第二制冷循环期间通过与第二制冷剂的间接热交换来冷却天然气流。
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公开(公告)号：US20230204284A1
公开(公告)日：2023-06-29
申请号：US18054635
申请日：2022-11-11
CPC分类号： F25J1/0022 , C09K5/042 , C09K5/045 , F25J1/0278 , F25J1/0062 , F25J1/0097 , F25J1/0256 , C09K2205/126
摘要： Methods and systems for liquefying natural gas using environmentally-friendly low combustibility refrigerants are provided. Methods of liquefaction include cooling a fluid in an LNG facility via indirect heat exchange with an environmentally-friendly low combustibility refrigerants that are propane, ethane and methane mixed with small amounts of fluorinated olefin, but still within close proximity to the boiling points of the pure refrigerants such that the mixed refrigerants can still be used in an optimized cascade process.
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公开(公告)号：US20150184776A1
公开(公告)日：2015-07-02
申请号：US14567371
申请日：2014-12-11
摘要： A conduit seal assembly includes an outer conduit having a first end with a first opening and a second end, opposite the first end, with a second opening. A first seal is positioned in the first opening for resisting a first temperature, and a second seal is positioned in the second opening for resisting a second temperature less than the first temperature. The first and second seals define a cavity and provide an air-tight seal of the cavity, and the assembly includes a monitoring assembly configured to sense a characteristic in the cavity.
摘要翻译： 导管密封组件包括外导管，其具有第一端和第二开口，第一端具有第一开口，第二端与第一端相对。 第一密封件位于第一开口中以抵抗第一温度，并且第二密封件位于第二开口中，用于抵抗小于第一温度的第二温度。 第一和第二密封件限定空腔并提供空腔的气密密封，并且组件包括被配置为感测空腔中的特性的监测组件。
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